diff options
| -rw-r--r-- | sql-common/client.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/sql-common/client.c b/sql-common/client.c index a6a2be1086f..2cbc15ad746 100644 --- a/sql-common/client.c +++ b/sql-common/client.c @@ -477,6 +477,9 @@ HANDLE create_shared_memory(MYSQL *mysql,NET *net, uint connect_timeout) DWORD error_code = 0; DWORD event_access_rights= SYNCHRONIZE | EVENT_MODIFY_STATE; char *shared_memory_base_name = mysql->options.shared_memory_base_name; + static const char *name_prefixes[] = {"","Global\\"}; + const char *prefix; + int i; /* get enough space base-name + '_' + longest suffix we might ever send @@ -491,9 +494,18 @@ HANDLE create_shared_memory(MYSQL *mysql,NET *net, uint connect_timeout) shared_memory_base_name is unique value for each server unique_part is uniquel value for each object (events and file-mapping) */ - suffix_pos = strxmov(tmp, "Global\\", shared_memory_base_name, "_", NullS); - strmov(suffix_pos, "CONNECT_REQUEST"); - if (!(event_connect_request= OpenEvent(event_access_rights, FALSE, tmp))) + for (i = 0; i< array_elements(name_prefixes); i++) + { + prefix= name_prefixes[i]; + suffix_pos = strxmov(tmp, prefix , shared_memory_base_name, "_", NullS); + strmov(suffix_pos, "CONNECT_REQUEST"); + event_connect_request= OpenEvent(event_access_rights, FALSE, tmp); + if (event_connect_request) + { + break; + } + } + if (!event_connect_request) { error_allow = CR_SHARED_MEMORY_CONNECT_REQUEST_ERROR; goto err; @@ -545,7 +557,7 @@ HANDLE create_shared_memory(MYSQL *mysql,NET *net, uint connect_timeout) unique_part is uniquel value for each object (events and file-mapping) number_of_connection is number of connection between server and client */ - suffix_pos = strxmov(tmp, "Global\\", shared_memory_base_name, "_", connect_number_char, + suffix_pos = strxmov(tmp, prefix , shared_memory_base_name, "_", connect_number_char, "_", NullS); strmov(suffix_pos, "DATA"); if ((handle_file_map = OpenFileMapping(FILE_MAP_WRITE,FALSE,tmp)) == NULL) |